Abstract
The 27Al, 15N, 13C and 1H NMR spectra in DMSO and 27Al and 15N magic angle spinning NMR spectra of 2:1 aluminium(III) complexes derived from 5-chloro-2-hydroxyaniline azo coupling products with acetoacetanilide, 3-methyl-1-phenylpyrazol-5-one and 2-naphthol were measured and analysed. It was found that the aluminium atom is six-coordinated, being bound to two oxygens and the nitrogen originating from 2-hydroxy-5-chloroaniline of each ligand, in an analogous fashion to 2:1 cobalt(III) complexes described earlier. © 1998 John Wiley & Sons, Ltd.
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